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McGuinessite
- Nix Prospect (Red Mountain prospect), Red Mountain District, Mendocino Co., California, USA
- Miniature, 4.2 x 4.0 x 2.8 cm
- Start Time: 12/25/2014 6:30:00 pm (CST)
- End Time: 01/06/2015 6:00:00 pm (CST)
- Auction Closed
Item Description
First published and recognized in 1981, McGuinnessite is a very rare anhydrous copper carbonate. The turquoise-blue crust is quite attractive, and if you look carefully, you can see that the microcrystalline McGuinessite was actually deposited in layers, giving it the appearance of a turquoise onyx or agate. Quite appealing! The Type Locality is nearby, also on Red Mountain.